Fair Value Measurement, Financial Instruments And Risk Management (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 29, 2013	Sep. 29, 2013	Sep. 23, 2012	Dec. 30, 2012
Fair Value Disclosures [Line Items]
Restructuring Reserve	$ 3,618,000	$ 3,618,000		$ 9,579,000
Restructuring related asset impairment		731,000	6,156,000
PROPERTY, PLANT, AND EQUIPMENT, net	93,037,000	93,037,000		107,184,000	[1]
Liabilities	361,000	361,000		208,000
Hedge ineffectiveness	0
Foreign Currency Forward Exchange Contracts [Member]
Fair Value Disclosures [Line Items]
Notional amount of derivatives not designated as hedging instruments	19,000,000	19,000,000
Liabilities	361,000	361,000		208,000
Foreign Currency Revenue Forecast Contracts [Member]
Fair Value Disclosures [Line Items]
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	9,000	200,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	400,000	400,000
Lease termination liabilities [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
Other restructuring costs		200,000
Liabilities, Fair Value Adjustment		100,000
Restructuring Reserve				400,000
Impairment of certain long-lived assets [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
PROPERTY, PLANT, AND EQUIPMENT, net	$ 1,100,000	$ 1,100,000

[1] Derived from the Company’s audited Consolidated Financial Statements at December 30, 2012.